.elai-chat{ max-width:540px; margin:0 auto; border:1px solid #e5e7eb; border-radius:16px; overflow:hidden; box-shadow:0 10px 20px rgba(0,0,0,.06);}
.chat-log{ height:420px; overflow:auto; padding:16px; background:#fafafa; display:flex; flex-direction:column; gap:12px; }
.chat-input{ display:flex; gap:8px; padding:10px; border-top:1px solid #e5e7eb; }
.chat-input input{ flex:1; padding:10px 12px; border:1px solid #e5e7eb; border-radius:10px; }
.chat-input button{ padding:10px 14px; border:none; background:#111827; color:#fff; border-radius:10px; cursor:pointer; }
.bubble{ max-width:85%; padding:10px 12px; border-radius:12px; }
.bubble.user{ align-self:flex-end; background:#dbeafe; }
.bubble.bot{ align-self:flex-start; background:#fff; border:1px solid #e5e7eb; }
.bubble.loading{ opacity:.8; font-style:italic; }
.bubble video{ width:300px; height:auto; border-radius:12px; display:block; }